Migrating 3Par

[FSU2014]

I have 3 arrays can I migrate the storage to 1 larger array with enough capacity?

If so, what tool do I use to do this?

Thanks in advance.

[Sheldon Smith]

Have you looked at HP 3PAR Peer Motion?

HP 3PAR Peer Motion Data Migration Guide, May 2015

# QL226-98157a

[FSU2014]

Thanks @Sheldon Smith, that is helpful. 

Do you know if this will work across data center?

[Sheldon Smith]

If you mean WAN distances, no. If the data centers are physically adjacent (bulkhead wall between) that should be fine.

Some OSes have internal migration facilities. For example, Un*x Volume Managers, or VMware vMotion Storage.

Note: While I work for HP, all of my comments (whether noted or not), are my own and are not any official representation of the company.
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[Thomas Biesmans]

Peer Motion has the same requirements as Synchronous Remote Copy over FC / IP: 2,6 ms RTT (round trip time).

You could always use Asynchronous Periodic (2,6 ms over FC, 150ms RTT over IP, 120ms RTT over FCIP) to move your data to a new system, then do a planned fail-over, this limits your downtime:

- halt I/O

- sync your RC Groups

- perform a fail-over

- make sure everything is exported, re-scan, start everything up etc.

You can choose your granularity by which volumes you put in the RC Groups.

RTTs are based on the support matrix of 3PAR OS 3.2.1.